Date: Mon, 10 Nov 1997 01:50:24 -0800 (PST) From: Julian Elischer <julian@whistle.com> To: jbryant@tfs.net Cc: Peter Mutsaers <plm@xs4all.nl>, freebsd-hackers@FreeBSD.ORG Subject: Re: Newest Pentium bug (fatal) Message-ID: <Pine.BSF.3.95.971110014943.6078E-100000@current1.whistle.com> In-Reply-To: <199711100650.AAA07487@argus.tfs.net>
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On Mon, 10 Nov 1997, Jim Bryant wrote: > In reply: > > CPU: Pentium (200.46-MHz 586-class CPU) > > Origin = "GenuineIntel" Id = 0x544 Stepping=4 > > Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX> > > > > Also crashes. > > > > How do I get a replacement from Intel? > > access to the press... we have to counter the paid ass-covering > robert collins is giving for intel in the press... > > he is claiming to have another instruction sequence that he calls an > "invalid opcode" that can crash a pentium in a similar way, and is > apparently holding back and telling people not to "stir up the pot" in > another recent usenet posting... > > research proves that the currently discussed bug is NOT an invalid > opcode as he claims but in fact is an infinitely useful documented > instruction. > > LOCK CMPXCHG8B EDX:EAX, ECX:EBX ; crash... pp 25-72 to > ; 25-73 of intel's arch & prog > ; manual for the pentium well EBX is on both sides,, is this useful? > > jim > -- > All opinions expressed are mine, if you | "I will not be pushed, stamped, > think otherwise, then go jump into turbid | briefed, debriefed, indexed, or > radioactive waters and yell WAHOO !!! | numbered!" - #1, "The Prisoner" > ------------------------------------------------------------------------------ > Inet: jbryant@tfs.net AX.25: kc5vdj@wv0t.#neks.ks.usa.noam grid: EM28pw > voice: KC5VDJ - 6 & 2 Meters AM/FM/SSB, 70cm FM. http://www.tfs.net/~jbryant > ------------------------------------------------------------------------------ > HF/6M/2M: IC-706-MkII, 2M: HTX-212, 2M: HTX-202, 70cm: HTX-404, Packet: KPC-3+ >
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